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(No Model.)

J. W. HILTON. GYLINDRIGAL AMALGAMATOR.

No. 323,148. Patented July 28, 1885.

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cylinder.

NITED STATES ATENT Fries.

JAMES WV. HILTON, OF NEW YORK, N. Y.

CYLINDRICAL AMALGAIVIATOR.

sPiscirrcA'rIoN forming part of Letters Patent No. 323,148, dated ma 28, 1885.

Application filed December 8, 1884. (No model.)

To aZZ whom it may concern:

Be it known that I, JAMEs W. HILTON, of the city, county, and State of New York, have invented a new and useful Improvement in Cylindrical Amalgamators, of which the following is a full, clear, and exact description.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a sectional side elevation of one of my improved cylindrical amalgamators. Fig. 2 is a sectional end elevation of the same, taken through the line 00 m, Fig. 1. Fig. .3 is

a sectional end elevation of a part of the same,

showing a modification. Fig. 4 is a sectional side elevation of a part of the same, taken through the line 3/ Fig. 3.

The object of this invention is to promote convenience and thoroughness in the removal of gold and silver from pulverized ores.

My invention consists in the construction and arrangement of parts, as will be hereinafter fully described, and then claimed.

A represents the cylinder, which may be made of wood or other suitable material, and may be round, square, triangular, or of other desired shape. To the ends of the cylinder A are attached gudgeons B, which are made hollow, so that the pulverized ore can be introduced when the said cylinder is in motion through one of said ends by a spout, O, or other suitable means, and the refuse can be allowed to escape through the other gudgeon. If desired, the pulverized ore can be introduced into the cylinder A when the said cylinder is at rest through openings in the shell of the said The gudgeons B can revolve in stationary bearings or upon friction wheels or rollers, as indicated in dotted lines in Fig. 2; or the cylinder, when made round, can revolve upon friction wheels or rollers. The cylinder A can be revolved by gear-wheels, as indicated in dotted lines in Fig. 2, from any convenient power, or the cylinder, when made round, can be revolved by a belt passing around it.

To the inner surface of the cylinder A are attached flanges D,which' I prefer to make V- shaped, as shown in Fig. 2, the bend being made small or large, as may be desired. In the rear wings of the flanges D, at or near the bend, are formed a number of perforations, E, as shown in Figs. 1 and 2. In the forward wings of the flanges D, at or near the shell of the cylinder A, is formed a slot, F, or perforations G, or both a slot and perforations, thelatter arrangement being shown in Figs. 1 and 2. With this construction,when the cylinder is supplied with a suitable amount of pulverized ore and quicksilver, and is revolved, the flanges D carry up with them the ore and quicksilver. As the flanges D rise, the most of the pulverized ore slides off and falls into the lower part of the cylinder, while the quicksilver passes through the slot F or perforations G into the interior spaces of the flanges, and escapes through the perforations E in a shower upon the pulverized ore in thelower part of the cylinder, and percolates through the mass of the said ore, so that the ore and quicksilver will be constantly stirred and mixed, bringing the quicksilver into contact with every particle of the ore, so that all the gold and silver will be removed from the said ore.

If desired, the forward wings of the flanges D can be omitted, and only the rear wings and the bends retained, as illustrated in the modification shown in Figs. 3 and l; but I prefer the construction first described as being more effective in operation.

The forward side of the rear wings of the flanges D,whether the forward wings be used or not, can have corrugations H formed upon or attached to them, as illustrated in Figs. 3 and 4., to secure an equal distribution of the quicksilver over the said wings, and prevent the quicksilver from collecting at one end of the said cylinder should the said cylinder be slightly inclined.

The amalgam can be withdrawn,when desired, from the cylinder A through an opening or openings in the said cylinder, which openings when not required for use can be closed secured to the interior of the shell and provided with perforations E in their rear wings, near the bend, and with slots F in their forward wings,near the shell, substantially as set forth.

2. In a cylindrical amalgamator, the V- shaped flanges D, provided with the perforations E in their rear wings,near the bend, slots F in the opposite ends of forward wings, and perforations G, adjacent to the slots F, substantially as set forth.

3. In a cylindrical amalgamator, the perforated flanges having curved extremities and corrugations H on their inner faces, substantially as set forth.

4. A cylindrical anialganiator consisting of the shell A, having hollow gudgeons B, spout or chute C, V-shaped flanges D, having perforations E, slots 13, and corrugations H, substantially as set forth.

JAMES W. HILTON.

Witnesses:

JAMES T. GRAHAM, O. SEDGWIoK. 

